Givens
=====
Ti = 92.8 oC = 92.8 + 273 = 365.8
T2 = 0.4 oC = 0.4 + 273 = 273.4
Vi = 1.54 mL
Vf = ?????
Formula
======
Vi/Ti = Vf / Tf
1.54 / 365.8 = Vf / 273.4
Calculations
=========
1.54 * 273.4 / 355.8 = Vf
vf = 1.15 mL
Comment
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if your teacher is concerned about sig digs, the answer is 1 mL. I'm not sure how to show that it is 1 sig dig. You can ask about this.
Answer:
a) Centripetal force = 80.4 N
b) Tension in the monkey's arm = 167.7 N
Explanation:
The centripetal force is the force keeping the monkey in circular motion and it is given by
F = (mv²/r)
m = mass of the monkey = 8.91 kg
v = velocity of the monkey = 2.61 m/s
r = 75.5 cm = 0.755 m
F = (8.91×2.61²)/0.755
F = 80.4 N
b) At the lowest point, there are 3 forces acting on the monkey, the tension in the arm, the monkey's weight and the centripetal force.
A quick force balance on the monkey at the lowest point gives
F = T - mg
80.4 = T - (8.91×9.8)
T = 80.4 + 87.32
T = 167.72 N
Answer:
Wilhelm Roentgen, Professor of Physics in Worzbury, Bavaria, was the first person to discover the possibility of using electromagnetic radiation of create what we now know as the x-ray
Hello.
The answer is
"Acting as a reference point for detecting motion" Julie wants to know if the snail moves throughout the day so she places a mark next to the snail which will determine if the snail moved from that spot.
Have a nice day